LUTHER BURBANK 



make the proper cut on limbs larger than this. 

 In top grafting large trees, it is often well to 

 graft only on the strongest limbs one season, and 

 on the smaller branches the next. In general 

 practice, however, a whole tree is usually grafted 

 over at the same time. 



"Bark" Grafting and "Inarching" 



In grafting chestnuts a modified method called 

 "bark" grafting is best. The cion is trimmed very 

 thin and quite a space is allowed for the cambium 

 layer to come into contact with the cambium layer 

 of the stock. A "T" shaped slit is made in the 

 bark of the stock, cutting through to the cambium 

 layer. The flaps about the vertical slit are turned 

 back, the cion inserted, and the lips of the bark 

 closed over it and bound firmly with a piece 

 of cloth or strong twine to give good support. 

 Grafting wax is applied freely. 



Such grafts are usually made on a fairly large 

 stock where it would be impracticable to split 

 the stock. As a rule four cions are inserted on 

 one stock, for usually two of these die. If they 

 should all live, two should be cut out, as the grafts 

 do best when there are not more than two on one 

 stock. 



"Inarching," as already stated, ditfers from 

 ordinary grafting in that the cion is left upon its 

 original roots until the union is made. 



[178] 



